In 1999, I was teaching a Grade 10 math class, only a few years older than the students I was teaching. A challenge! Graphic calculators had just been introduced. To be able to actually SEE where a line crossed the x-axis instantaneously and to be able to understand the significance of that point on the line was an incredible tool in teaching quadratic equations. I know that I understood it in a way that I hadn’t when I been learning it originally. The teacher was learning right along with the students! This was probably my first exposure to the idea that it is Ok for teachers not to have all the answers when it comes to technology.